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128 lines
3.1 KiB
128 lines
3.1 KiB
9 years ago
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/* BEGIN_COMMON_COPYRIGHT_HEADER
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* (c)LGPL2+
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*
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* LXQt - a lightweight, Qt based, desktop toolset
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* http://lxqt.org
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*
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* Copyright: 2014 LXQt team
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* Authors:
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* Hong Jen Yee (PCMan) <pcman.tw@gmail.com>
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*
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* This program or library is free software; you can redistribute it
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* and/or modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301 USA
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*
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* END_COMMON_COPYRIGHT_HEADER */
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#include "ossengine.h"
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#include "audiodevice.h"
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#include <QDebug>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/ioctl.h>
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#include <errno.h>
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#ifdef __FreeBSD__
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#include <sys/soundcard.h>
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#elif defined(__linux__) || defined(__Linux__)
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#include <linux/soundcard.h>
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#else
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#error "Not supported platform"
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#endif
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OssEngine::OssEngine(QObject *parent) :
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AudioEngine(parent),
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m_mixer(-1),
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m_device(NULL),
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m_leftVolume(0),
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m_rightVolume(0)
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{
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qDebug() << "OssEngine";
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initMixer();
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}
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OssEngine::~OssEngine()
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{
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if(m_mixer >= 0)
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close(m_mixer);
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}
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void OssEngine::initMixer() {
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m_mixer = open ("/dev/mixer", O_RDWR, 0);
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if (m_mixer < 0) {
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qDebug() << "/dev/mixer cannot be opened";
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return;
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}
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qDebug() << "InitMixer:" << m_mixer;
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m_device = new AudioDevice(Sink, this);
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m_device->setName("Master");
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m_device->setIndex(0);
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m_device->setDescription("Master Volume");
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m_device->setMuteNoCommit(false);
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updateVolume();
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m_sinks.append(m_device);
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emit sinkListChanged();
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}
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void OssEngine::updateVolume() {
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if(m_mixer < 0 || !m_device)
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return;
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int volumes;
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if(ioctl(m_mixer, MIXER_READ(SOUND_MIXER_VOLUME), &volumes) < 0) {
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qDebug() << "updateVolume() failed" << errno;
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}
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m_leftVolume = volumes & 0xff; // left
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m_rightVolume = (volumes >> 8) & 0xff; // right
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qDebug() << "volume:" << m_leftVolume << m_rightVolume;
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m_device->setVolumeNoCommit(m_leftVolume);
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}
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void OssEngine::setVolume(int volume) {
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if(m_mixer < 0)
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return;
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int volumes = (volume << 8) + volume;
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if(ioctl(m_mixer, MIXER_WRITE(SOUND_MIXER_VOLUME), &volumes) < 0) {
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qDebug() << "setVolume() failed" << errno;
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}
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else {
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qDebug() << "setVolume()" << volume;
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}
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}
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void OssEngine::commitDeviceVolume(AudioDevice *device)
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{
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if (!device)
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return;
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setVolume(device->volume());
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}
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void OssEngine::setMute(AudioDevice *device, bool state)
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{
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if(state)
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setVolume(0);
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else
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setVolume(m_leftVolume);
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}
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void OssEngine::setIgnoreMaxVolume(bool ignore)
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{
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// TODO
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}
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